Output feedback stabilisation of minimum phase systems by delays

A. Ilchmann, C. J. Sangwin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

For linear, square, multi-input-multi-output, minimum-phase, relative-degree one or two systems, proportional output feedback controllers are studied. In particular, we show that derivative feedback can be replaced by delay feedback, essentially an Euler approximation of the derivative, if the delay is sufficiently small. Stability regions are determined and related.

Original languageEnglish
Pages (from-to)233-245
Number of pages13
JournalSystems and Control Letters
Volume52
Issue number3-4
DOIs
Publication statusPublished - Jul 2004

Keywords

  • Delay-feedback
  • Minimum phase systems
  • Output feedback stabilisation
  • Relative degree two

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